Thank you so much...more to obsess on and overthink about.Not sure if everyone saw this but posted by @DealerInsider. Gives a sense of the relative commodity issues. This came from the April Ford Marketing deck.
Below are the National (NAT) percentages and how @DealerInsider represented this (because it says varies by dealer) was that if a dealer had 10 builds with 2.7 only 6-7 (i.e. 60-70%) would preview and therefore get scheduled for production. You can also read into this the more you have (sucks to be me) the lower the risk of previewing/scheduling. But time stamp hopefully can help you after the priority builds clear.